Copper Pads; Insulator Cap; Channel Identification Rings - Keysight N2894A User Manual

Accessories

Copper Pads

These self adhesive copper pads can be attached on top of
an IC and connected to its ground pins to create a conve-
nient ground plane for the probe to connect to. When used
with the ground blade, this method provides an ideal
ground connection for probing signals with high frequency
content. However, to maximize the performance of this
setup, you need to connect the copper pad to as many
grounding locations as possible.
Figure 5

Insulator Cap

This cap fits over the probe tip and covers the ground barrel of the
probe, covering any potential shorting locations near the tip. This
enables you to probe in hot environments without having to worry
about shorts.

Channel Identification Rings

The channel identification rings can be used to keep track of which
probe is connected to which channel input on your oscilloscope. Place
one ring on the probe cable near the oscilloscope input and place
another ring of the same color near the probe head. This ensures that
you can pick up a probe and immediately know which channel it is con-
nected to without having to track the cable back to the oscilloscope channel input.
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Keysight N2870A-Series and N2894A Passive Probes User's Guide
Copper Pad on IC